Question 6
Classify the following solids in different categories based on the nature of intermolecular forces operating in them:
Potassium sulphate, tin, benzene, urea, ammonia, water, zinc sulphide, graphite, rubidium, argon, silicon carbide.
Potassium sulphate → Ionic bond is formed,wherein potassium loses electrons & sulphate gains electrons
Tin → Tin can form two ions Sn 2+ or Sn4+ now depending on what form it is in and what other element it is bonding with then only the type of bonding will be known
Benzene → it is comprise of sp2 hybridized carbon atoms which makes covalent bond with each other by mutual sharing &pairing of electrons
Urea → Polar molecular solid & they mostly forms hydrogen bond with other atoms
Ammonia → covalently bonded polar compound formed by mutual sharing & pairing of electrons between nitrogen & three hydrogen atoms
Water → covalently bonded polar compound formed by mutual sharing of electrons between oxygen & hydrogen atoms
Zinc sulphide → it exist in the form of crystals & makes coordination bond
Graphite → it consist of carbon atoms & have covalent bond between them forming a 2-D (flat, planar etc.) network, which in itself is strong. These planes are then held together by London Forces, which are very weak.
Rubidium → Metallic bond is formed by rubidium because it is a metal.Metallic bond is hydrid of covalent bond & ionic bond
Argon → Non-polar molecular solid
Silicon carbide → Covalent or network solid
